EXPANDING FOAM PART ONE
This is still the trickiest part to me. I will outline my process here though.
So I wanted to use this epoxy again as the space in the Wildman jr was small and I wanted to get better at using the foam.
First step since the foam is reactive to heat, I put everything in the fridge all day. The two part foam, the syringe, the tubing, my stir sticks, and the little cups for measuring.
Everything being cold buys you valuable seconds for mixing and injecting.
Make sure everything is laid out and you have your steps down. A practice run in a cup wasting precious epoxy is wasted epoxy WELL SPENT.
Those dental irrigators hold about 20g of epoxy total. 9g of each part is about right. More than that will make it shoot out the top before you get the syringe together when it starts to kick. If you need more than than, do a second batch.
View attachment pour epoxy.mp4
I cut the tip off the syringe and fitted a piece of tube to got to the bottom of the space.
If you try to just pour it in the space, it will kick on the way down, preventing a full pour and you will end up with an unfilled void at the bottom of your space.
Part B is more viscous than part A. Why does this matter? If I am pouring one or the other into a syringe and it starts kicking on contact, I want to put the slow moving part B in the syringe first. It can sit there and when I put the less viscous part A on top of it, the part A comes out of the little cup faster, and I can start stirring as soon as the little cup is empty.
I did say this all happens REALLY fast.
Have your tube in the rocket at the bottom of the space ready to go. Have your kebob mixing stick ready to go. The kebob stick needs to be able to go into the neck of the syringe to mix the little bit in there.